Ampere hours to Milliampere hours Converter
Quick answer: To convert ampere hours to milliampere hours, multiply by 1,000. For example, 10 Ah is 10,000 mAh. One ampere hour equals 1,000 mAh.
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Use the Ampere hours to Milliampere hours Converter
Ampere hours to Milliampere hours formula and what each symbol means
mAh = Ah × 1,000
| Symbol | Meaning |
|---|---|
| Ah | Ampere hour |
| mAh | Milliampere hour |
Ampere hours to Milliampere hours examples
1 Ah
1 Ah × 1,000 = 1,000 mAh.
10 Ah
10 Ah × 1,000 = 10,000 mAh.
100 Ah
100 Ah × 1,000 = 100,000 mAh.
Ampere hours compared with Milliampere hours
One Ah is 1,000 times as large as one mAh, so your number gets bigger when you convert ampere hours to milliampere hours and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
About ampere hours and milliampere hours
Ampere hour (Ah): Ampere hour, exactly 3,600 C. Milliampere hour (mAh): Milliampere hour, exactly 3.6 C.
How to calculate Ampere hours to Milliampere hours step by step
- Enter the value in Ah (the starting unit).
- Multiply by 1,000, because 1 Ah = 1,000 mAh.
- The product is the value in mAh. To go back, divide by 1,000 or multiply by 0.001.
Popular electric charge conversions
How to read your Ampere hours to Milliampere hours result
One ampere hour is exactly 3,600 C and one milliampere hour is exactly 3.6 C.
| AMPERE HOURS | MILLIAMPERE HOURS |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 1,000 | 1,000,000 |
Milliampere hours to Ampere hours: quick table
| MILLIAMPERE HOURS | AMPERE HOURS |
|---|---|
| 1 | 0.001 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
Common mistakes when calculating Ampere hours to Milliampere hours
- Mixing mC and µC, which differ by 1,000.
- Dividing when you should multiply: from Ah to mAh multiply by 1,000; from mAh to Ah divide by 1,000.
Ampere hours to Milliampere hours FAQ
How many mAh are in 1 Ah?
1 Ah equals 1,000 mAh.
How many Ah are in 1 mAh?
1 mAh equals 0.001 Ah.
Is 1 Ah = 1,000 mAh an exact conversion?
The factor is shown rounded to 7 significant figures (1,000). The calculator above uses more digits.
What is a milliampere hour (mAh)?
Milliampere hour, exactly 3.6 C.
How can I estimate ampere hours to milliampere hours in my head?
One Ah is 1,000 times as large as one mAh, so your number gets bigger when you convert ampere hours to milliampere hours and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
What is 7 Ah in milliampere hours?
7 Ah = 7,000 mAh (since 7 × 1,000).
What is 40 Ah in milliampere hours?
40 Ah = 40,000 mAh (since 40 × 1,000).
What is 200 Ah in milliampere hours?
200 Ah = 200,000 mAh (since 200 × 1,000).
How many decimals should I keep when converting Ah to mAh?
Match the precision of your original measurement. For example, 10,000 mAh rounds to 10,000 mAh at 3 significant figures; keep more digits only for engineering or scientific work.
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)